#40B3CE#40B3CE

#40B3CE is a light, moderate cyan. Relative luminance 0.378; OKLCH L 71.4% C 0.108 H 216.6°. Best body text is #000000 at 8.56:1 contrast (WCAG AA passes).

Color values

HEX	#40B3CE
RGB	rgb(64, 179, 206)
HSL	hsl(191, 59%, 53%)
HSV	hsv(191, 69%, 81%)
CMYK	cmyk(68.9%, 13.1%, 0%, 19.2%)
CIE-LAB	lab(67.86, -23.43, -23.06)
CIE-LCH	lch(67.86, 32.87, 224.54°)
OKLab	oklab(71.36% -0.0866 -0.0642)
OKLCH	oklch(71.36% 0.108 216.6)
XYZ	xyz(29.3704, 37.7831, 64.1255)
Luminance	0.3779 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B3CE #CE5B40

analogous

#40CEA2 #40B3CE #406CCE

triadic

#40B3CE #CE40B3 #B3CE40

tetradic

#40B3CE #A240CE #CE5B40 #6CCE40

square

#40B3CE #A240CE #CE5B40 #6CCE40

split-complementary

#40B3CE #CE406C #CEA240

monochromatic

#1E6575 #2B8FA6 #40B3CE #71C6DA #A1DAE7

Accessibility & contrast

On white

2.45

#40B3CE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.56

#40B3CE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B3CE

8.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B3CE	#FFFFFF	#000000	##000000
##40B3CE	1.00	2.45	8.56	8.56
#FFFFFF	2.45	1.00	21.00	21.00
#000000	8.56	21.00	1.00	1.00
##000000	8.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A1AED0

Deuteranopia (green-blind)

#8D9FCE

Tritanopia (blue-blind)

#00BDBB

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #40b3ce;
/* rgb */ color: rgb(64, 179, 206);
/* oklch */ color: oklch(71.4% 0.108 216.6);

Tailwind

colors: {
  custom: {
    50: '#87cadd',
    500: '#40b3ce',
    950: '#000000',
  },
}

SCSS

$custom: #40b3ce;
$custom-light: #87cadd;
$custom-dark: #000000;

JSON

{
  "hex": "#40b3ce",
  "rgb": {
    "r": 64,
    "g": 179,
    "b": 206
  },
  "hsl": {
    "h": 191.408,
    "s": 59.167,
    "l": 52.941
  },
  "oklch": {
    "l": 0.71361,
    "c": 0.10779,
    "h": 216.6
  },
  "luminance": 0.37786
}

Semantic roles & 50–950 ramp

primary

#40B3CE

secondary

#D4A296

accent

#6345E2

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0D1315

muted

#7D8283

Preview Lab

Preview with #40B3CE

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →